It usually includes type inspection report, exit inspection report, exit certificate, etc.
10.
Note: This article stipulates that various materials or products used in building ground engineering shall not only meet the design requirements, but also comply with the current national standards code for indoor environmental pollution control of civil building engineering GB50325, limit of radionuclides in building materials gb6566, limit of formaldehyde emission in indoor decoration materials, wood-based panels and their products GB18580 Limit of harmful substances in solvent based wood coatings for interior decoration materials GB18581, limit of harmful substances in adhesives for interior decoration materials GB18583, limit of harmful substances in PVC coiled floor for interior decoration materials gb18586 Emission limits of harmful substances in carpets, carpet liners and Carpet Adhesives for interior decoration materials (gb18587), current industrial standards limit of harmful substances in building waterproof coatings (jc1066), code for radioactive inspection of imported stone materials (Sn / t2057), and other current regulations on limits of radioactive and harmful substances.
5.
The division of sub divisional works and subdivisional works of building ground works shall be implemented according to the provisions in the following table.
(mandatory) Note: This article is mandatory.
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This is not only to make each layer have the conditions of normal condensation and hardening, but also to ensure the project quality..
Toilets and bathrooms and building floors with anti-skid requirements shall meet the design anti-skid requirements.
9.
The design, construction and acceptance of ground radiant heating system shall comply with the relevant provisions of the current industry standard technical specification for ground radiant heating jgj142.
Construction enterprises engaged in building ground engineering construction shall have quality management system and corresponding construction process and technical standards.
(specify the construction method of building ground with planting requirements) 7.
There shall be a test report when the materials enter the site.
The construction method of the dividing joint of the surface course shall meet the design requirements.
If there is no current national standard, it shall have the technical approval document of the provincial competent administrative department of housing and urban rural construction.
Note: for the construction of each floor of building ground engineering, the ambient temperature for laying this floor is specified.
8.
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The construction method of building ground with planting requirements shall comply with the design requirements and the relevant provisions of the current industrial standard technical specification for planting roof engineering jgj155.
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If there are no design requirements, the planting ground shall be more than 50mm lower than the ground of adjacent buildings or treated as sill.
4.
In order to ensure the construction quality between relevant civil engineering and installation and avoid disputes over quality problems after completion, it is extremely important to emphasize the intermediate handover quality inspection.
The laying of the base course (each structural layer) and surface course of the building ground engineering shall not be constructed until the next layer is inspected and qualified.
2.
11.
1、 Basic regulations 1.
Materials or products entering the site shall also meet the following conditions: there shall be quality certificates; The model, specification and appearance shall be accepted, and important materials or products shall be sampled for re inspection.
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To meet the functional requirements of bathroom and toilet room and building floor with anti-skid requirements, and prevent injury to human body during use.
During the construction of building ground works, the ambient temperature of each layer shall be controlled in accordance with the technical requirements of materials or products, and shall comply with the following provisions: when paving with mixture mixed with cement and lime and paving with petroleum asphalt binder, it shall not be lower than 5 ℃; When using organic adhesive, it shall not be lower than 10 ℃; When sand and stone materials are used for laying, it shall not be lower than 0 ℃; When self leveling and coating are adopted, the temperature shall not be lower than 5 ℃ nor higher than 30 ℃.
Handover inspection shall be conducted between each floor of building ground works and divisional (sub divisional) works, subdivisional works and equipment pipeline installation works of relevant disciplines before laying.
(mandatory) quality qualification certificate: a valid Chinese quality certificate provided with the mobilized materials or products.
After the trench, concealed pipe, thermal insulation, heat insulation, sound insulation and other works under the building ground are completed, the construction of the building ground works can be carried out only after passing the inspection and making concealed records.
Mainly aiming at the composition of each layer of “building ground”, combined with the scope of application of this specification, determine the division of the names of its sub divisional works and corresponding sub divisional works, so as to facilitate the inspection and acceptance of construction quality.
Note: 1.9 and 1.10 emphasize the construction sequence to avoid the rework of the upper and lower layers due to construction quality defects, so as to ensure the improvement of the overall construction quality level of building ground (including structural layer).
The natural stone materials such as marble, granite and stone used on the building floor, as well as the materials or products such as bricks, prefabricated plates, carpets, artificial plates, adhesives, coatings, cement, sand, stone and additives, shall comply with the current national regulations on indoor environmental pollution control and the limit of radioactive and harmful substances.
The materials or products used in building ground engineering shall meet the design requirements and the provisions of relevant current national standards.
6.
The surface course can be laid only after the construction acceptance of the ground radiant heating system is qualified.
3.
The construction of each structural layer of the building ground is not only the construction sequence of the upper and lower layers of the project, but also sometimes involves the cross construction with other divisional works.
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The imported products shall also include the inspection certificate of entry-exit commodities.
